By Kenny Parker & Stephen Topping & Chiara Fiorillo A mum-of-two attacked her neighbour, knocking out her two front teeth and when police arrived, she told them: “I know I have done wrong.” Lisa Bell, 39, arrived at Charlie Smith’s home, where she attacked her in the living room in Runcorn, Cheshire, last July 27. The motive of the attack was unknown, Warrington Magistrates Court heard, but it left the victim so “conscious” about her looks that she ended her relationship. Miss Smith told the police she now “constantly” covers her mouth in public, only shops online, and fears she could suffer a…